Heat oil in large skillet. Saute onion and rosemary for about 10 minutes until onion is golden. Add chick-peas; cook about 5 more minutes. Add tomatoes; simmer for about 10 minutes until softened.
Meanwhile, cook orzo in a 4-quart pot of salted water for 6 minutes, until slightly undercooked. Drain; add to chick-pea mixture. Cook over low heat for about 5 minutes, until orzo is tender.
Stir in parsley and season with pepper. Serve.
Note: sometimes its necessary to add a little of the pasta cooking water if its getting too dry.